If you mean on your Profile top left you have your name and then a second name is attached to that same account then yes. But you need to do some preparation first. All you need is a second email address, one you never used in UV/RLC before. Let's say it's here@home.com as an example.

You click the top left where it says your name and click on "add Profile", right at the bottom of that page is an export section. Use that and export the name you want rid of to that here@home.com address ( an example only, you need to use a real address, Hotmail should be OK).

Now you can cancel that account but you need to be logged into it BEFORE going to this link. So you use the here@home.com address (use your real one, not this example) and the same password as your main account, that remains unchanged. Then visit this link and complete the cancellation;

http://utherverse.com/net/cancel.aspx

It may not vanish straight away, it could take weeks/months but will be inactive anyway. Just please be very careful what you do and take your time.